Study and implementation of the stability and control system of a mini-launcher
Visualitza/Obre
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2099.1/12940
Tipus de documentProjecte Final de Màster Oficial
Data2011-07-26
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement-NoComercial-CompartirIgual 3.0 Espanya
ProvinençaIn this Master Thesis Work (TFM), the proposal is to study some aspects of the stability,
like flutter effects, over a small space launcher (less than 100 kg including propellant and
payload). This mini-launcher is called Wiki-Launcher and it is part of a space mission done
by the Wikisat team. This team is participating in the N-Prize competition that consists of
designing a femto-satellite (Less than 20 grams) and injecting it into orbit by a home-made
launcher that costs less than 1,000 Pounds Sterline before September, 2012.
Flutter is a kind of self-excited aeroelastic unstable phenomenon where the safety of the
flight vehicles may be threatened. Flutter can be catastrophic once it occurs and must
be avoided. Thus it is mandatory to verify the flutter boundary of the flight launcher by
performing wind-tunnel and flight tests, which always consume plenty of time and money.
Efficient and effective flutter prediction methods are in demand so as to accelerate the
process of tests, as well as ensuring the safety during the tests.
The flutter boundary of a mini-launcher is predicted using the data-based parametervarying
model. The core algorithms are the well-developed linear fraction transform (LFT)
and μ-analysis. Compared with the former model-based μ method, this approach requires
less model information and is easier to handle.
In this thesis, we try to check if this method is able to be implemented in a low cost way for
the Wiki-Launcher that could be extended to other larger launchers.
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
memoria.pdf | 7,616Mb | Visualitza/Obre |